After using the free edition of iRedMail for a while, and being very happy with the results, we decide to upgrade to the Pro edition.

Anxious to start using the Pro edition, I notice in the confirmation email i received instructions to upgrade existing free editions to Pro, yet nothing seems to be relevant to the version I currently have running - v0.1.8.

I have searched the various guides to upgrading, yet I still fail to find clear instructions on how to upgrade from v0.1.8 free to v1.60 Pro.